/*
*{
    margin: 0;
    padding: 0;
}
aside,article{
    float: left;
}
.warper{
    font-size: 22px;
    color: #ffffff;
    text-align: center;
}
.clearfix:before,
.clearfix:after{
    content: "";
    display: block;
    clear: both;
}
header,nav,.main,footer{
    width: 1000px;
    margin: 0 auto;
}
header{
    height: 100px;
    background-color: #000000;
}
nav{
    height: 30px;
    background-color: #2eafbb;
}
.main{
    height: 500px;
    background-color: #666666;
}
article{
    height: 500px;
    width: 300px;
    background-color: rebeccapurple;
}
aside{
    height: 500px;
    width: 700px;
}
footer{
    height: 100px;
    background-color: red;
}
.commer{
    margin-top: 10px;
}*/
